Improvement in base-burning stoves



UNITED STATES PATENT OEEIcEo AUGUST SPITZMILLER, OF BUFFALO, ASSIGNOR TO HIMSELF AND NORMAN H. GALUSHA, OF ROCHESTER, NEW YORK.

IMPROVEMENT IN BASE-BURNING STOVES.

Specification forming part of Letters Patent No. 121,433, dated November 28, 1871; antedated November 11, 1871.

' following is a speciiication:

This invention consists in the arrangement, hereinafter described, for producing a downward iiue in a stove, outside the stove proper, where by the base will be properly heated.

In the drawing, Figure l is a vertical section of a stove provided with my improvement; Fig. 2, a horizontal section of the base; Fig. 3, a similar section of the damper in the rear.

A represents a stove, and` B the sinoke-pipe, which are of ordinary construction. In the bottom of the stove is situated a base-chamber, O, having a central ring or drum, D, whose only object is to close the central part ofthe chamber and cause the smoke and products of combustion to pass in circuit through the drum-space a from the induction point b to the eduction point c. A vertical plate, E, of the form shown in Fig. 2, also cuts oit' the induction from the eduction-passage. The ordinary connection-pipe G is also employed kbetween the base and the top of the stove, at

the rear. Outside this pipe is a second pipe, H, which leaves a jacket-space, el, between. Ports or passages ff at the top allow the smoke and products of combustion from the ire-chamber to pass into the jacket space, and when the damper I communicating with the smoke-pipe B is closed there is no alternative but for the smoke to pass downward into the base. The lower end of jacket-space d communicates only with the induction side of the drum-space a, as shown at g, Fig. 2. Here it passes around, as before described, to the opposite side, which communicates only with interior pipe G, as shown at h, when it nally escapes straight up the pipe, having a clear exit. A direct draught is produced at any time by simply opening damper I. The ashes are carried on, in shaking, by tube w, which eX- tends from the ash-pit to the inner pipe G. l

This construction is adapted to ordinary stoves, but more especially to what are known as baseburning or magazine stoves. Downward ilues are common in ordinary stoves, and are also used in some base-burning stoves 5 but, owing to the special form and construction of the latter it has been difficult to apply the principle without making the stove unsightly and greatly increasing the size and expense. By this plan I obviate all such objections, leaving the body of the stove entirely free of any eXtra attachments, and oi the usual size and form. The only difference in appearance is a slight increase in size of the rear connection pipe, which increase, however, is slight and scarcely noticeable, and does not in any manner affect the good appearance of the stove.. This arrangement `of the rear connection-l pipes and the corresponding arrangement of the base constitute my invention.

I disclaim the principle of a downward flue;

.nection with a stove, in the manner shown and described.

In witness whereof I have hereunto signed my name in the presence of two subscribing Wit nesses.

AUGUST SPITZMILLER. Witnesses: I

F. RANsoM, J. R. DALE. (154) 

